     (render [_]
       (html [:div.maps-panel
              (om/build maps-toolbar ui)
-             (om/build maps-canvas ui)]))))
+             (om/build maps-canvas {:ui ui :data data})]))))

      (when-let [kill-ch (:kill-ch (om/get-state owner))]
        (put! kill-ch (js/Date.))))
    om/IRenderState
    (render-state [_ state]
      (html
       [:div.maps-viewport
        [:div.maps-canvas {:ref "gmap"}]]))))

(defn map-toolbar-button [{:keys [link control active?]} owner]
  (reify

                           :mapTypeId (:ROADMAP map-types)
                           :zoom 15})

(defn maps-canvas-dev [ui _]
  (reify
    om/IRenderState
